Introduction

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The following chart indicates weed and brush controlled by dicamba + 2,4-D mixes at the listed rates.
Weeds Rate (g ae per acre) †
Dicamba
2,4-D
Poison ivy 322 426
Wild carrot 408 426
Aspen poplar 634 852
Prickly rose, western snowberry ††† 710 852
Rate (L/1000 L of water) ††
Alder, aspen poplar, cherry, western snowberry, wolf willow, wild rose 408 745
†
Applied by broadcast sprayer.
††
Apply to the foliage and stems to the point of run-off using high volume equipment.
†††
Ester formulations of 2,4-D only.
Canada thistle, Perennial sow-thistle in fallow: Apply prior to the bud stage. Must be applied to thistle plants with 6 to
10 inches (15 to 25 cm) of new growth.
Canada thistle control in fall after harvest: When thistles exhibit new growth and at least 2 weeks prior to a killing frost.
Refer to label for full lists of weeds controlled by dicamba plus tank mixes in cereals, pastures, fallow and other situations.
When tank mixing, always check the tank mix partner recommendations for additional staging restrictions.
Brush control in pastures: When brush is actively growing and is 6 feet (2 m) in height or less (in spring or early summer).
Growth greater than 2 metres may be cut and allowed to regrow prior to treatment.
Weed Control
Application Information:
• Water Volume:
º Preseeding burnoff: 20 to 45 L per acre.
º Annual crops: at least 45 L per acre.
º Pastures, fallow and stubble: 45 to 90 L per acre.
º Corn: 90 to 140 L per acre.
º Brush: high volumes to the point of run-off.
• Nozzles and Pressure:
º Broadcast application:
º Dicamba tolerant soybeans (Enginia and Xtendimax only): Use nozzles that deliver extremely coarse to ultra
coarse spray droplets (volume median diameter of 450 microns or more) as defined by ASABE standard S572.1
and as shown in the nozzle manufacturer’s catalog.
º Other Uses: Maximum 40 psi (275 kPa) with conventional flat fan nozzles. Low drift nozzles may require higher
pressures for proper performance. Use a combination of nozzles and pressure designed to deliver even coverage
of ASABE coarse droplets.
º Brush Control: Use high volume spray equipment producing large droplets including, but not limited to, handwand,
boomless nozzle and Radi-Arc technologies.
How it Works:
Refer to Table 9 on page 48.
Effects of Growing Conditions:
Crop damage (stunting, reduced seed set) can occur if the chemical is applied at any time other than the recommended
stage. DO NOT apply to crop under stress from adverse environmental conditions, such as excess moisture, drought and
disease. Apply when air temperature is between 10 and 25 o C.
DO NOT apply:
• when there is a risk of severe temperature fall in the night;
• under high humidity, temperatures above 30 o C, or fog conditions, to prevent drift to sensitive crops;
• when wind is blowing toward a nearby sensitive crop;
• when winds are below 3 km/h or above 15 km/h.